var testMixins = {
    data () {
        return {
            a: 1,
            reactObj: {
                react1: 1
            },
            reactArr: [1]
        };
    },
    created () {
        console.log('mixins created');
    },
    methods: {
        say () {
            console.log('mixins say: hello mixins.');
        }
    },
    computed: {
        b () {
            return this.a + 1;
        }
    },
    watch: {
        a (v, oldV) {
            console.log('mixins watch, a is changed:', v, oldV);
        }
    }
};